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102222021205 = 531709930179
BaseRepresentation
bin101111100110011101…
…0000100001001010101
3100202212000202201022101
41133030322010021111
53133322314134310
6114543220402101
710246104562303
oct1371472041125
9322760681271
10102222021205
113a396736567
1217989b46331
139840c814a5
144d3a1d1273
1529d435643a
hex17cce84255

102222021205 has 16 divisors (see below), whose sum is σ = 126802137600. Its totient is φ = 79027922880.

The previous prime is 102222021191. The next prime is 102222021221. The reversal of 102222021205 is 502120222201.

It is not a de Polignac number, because 102222021205 - 225 = 102188466773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355195 + ... + 574984.

It is an arithmetic number, because the mean of its divisors is an integer number (7925133600).

Almost surely, 2102222021205 is an apocalyptic number.

It is an amenable number.

102222021205 is a deficient number, since it is larger than the sum of its proper divisors (24580116395).

102222021205 is an equidigital number, since it uses as much as digits as its factorization.

102222021205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930924.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 102222021205 its reverse (502120222201), we get a palindrome (604342243406).

The spelling of 102222021205 in words is "one hundred two billion, two hundred twenty-two million, twenty-one thousand, two hundred five".

Divisors: 1 5 31 155 709 3545 21979 109895 930179 4650895 28835549 144177745 659496911 3297484555 20444404241 102222021205